Source
the octopus is a valid one, the ticket is to be inserted in the red slot at the top while the octopus card works like a proximity card (you just tap it near the sensor).
the octupus one must have been taken in hong kong they have something called an octupus card that can be used for just about anything from taking the bus to buyinh a pack of smokes at the 7 11
ok
I liked the crumb one.
